Talos Vulnerability Report

TALOS-2016-0232

April 10, 2017

CVE Number

CVE-2016-8718

Summary

An exploitable Cross-Site Request Forgery vulnerability exists in the Web Application functionality of Moxa AWK-3131A Wireless Access Point running firmware 1.1. A specially crafted form can trick a client into making an unintentional request to the web server which will be treated as an authentic request.

Tested Versions

Product URLs

CVSSv3 Score

7.5 - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

An exploitable Cross-Site Request Forgery (CSRF) vulnerability exists in the Web Application functionality of Moxa AWK-3131A Series Industrial IEEE 802.11a/b/g/n wireless AP/bridge/client. A specially crafted form can trick a client into making an unintentional request to the web server which will be treated as an authentic request.

Successful exploitation of this vulnerability can enable an attacker to trick a legitimate user in to performing any action permitted by the device, including exploitation of unrelated vulnerabilities. For example, an attacker may use a CSRF attack to modify device settings or even take advantage of OS Command Injection vulnerabilities to execute operating system commands with root privileges.

Exploit Proof-of-Concept

The below will change the user's password to a value determined by the attacker

Alternatively, leveraging an OS Command Injection vulnerability in conjunction with CSRF, a client which attempts to render the below page will cause a root-level shell to be opened on the vulnerable device: